What is a Wet Multi-Plate Clutch?
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Wet multi-plate clutch is a clutch cooled by oil. Function: The wet clutch utilizes hydraulic pressure for engagement. During the processes of clutch disengagement and full engagement, including situations with relative rotation, it serves as a transmission device for controlling driving force. Unlike dry clutches, wet clutches primarily operate via hydraulic pressure and are commonly used in automatic transmissions and continuously variable transmissions (CVTs) that require high smoothness. Additionally, compared to the most common automatic transmission starting device—the torque converter—it exhibits certain suppression of slippage during driving, thereby improving fuel economy. Operational Characteristics: A wet clutch is a type of clutch where the friction surfaces are cooled by oil. The heat generated by slippage and friction during the engagement process is continuously carried away by the cooling oil, effectively controlling the temperature of the friction surfaces and significantly reducing wear. As a result, wet clutches offer stable performance with minimal changes in clamping force and friction coefficient over long-term use. They are widely used in industrial tractors with high operational loads and frequent manipulation, as well as in friction-type shift transmissions. The reserve coefficient for wet clutches typically ranges from 1.5 to 2.5.